I have 3-9 and 6X MQs on hand right now, still trying to decide. Playing hide and seek with a new 20 moa rail I know is here somewhere, but will be using the 'horn rings regardless.
I've a good amount of 75 AMAX I can load up, but won't have time to fireform and load same afterward prior to heading back out for work. The barrel is a 7", so I'll be looking to try a variety of the heavier offerings as well when I come back.
My thoughts on this one were toward a decent all around rifle. It also represents my first .223 flavored DBM. I've a couple of the AM mags coming; are you opening them up for additional COAL or running them as is?